Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-Based Key Derivation

Yu Long Chen, Yukihito Hiraga, Nicky Mouha, Yusuke Naito 0001, Yu Sasaki, Takeshi Sugawara 0001. Beyond-Birthday-Bound Security with HCTR2: Cascaded Construction and Tweak-Based Key Derivation. In Goichiro Hanaoka, Bo-Yin Yang, editors, Advances in Cryptology - ASIACRYPT 2025 - 31st International Conference on the Theory and Application of Cryptology and Information Security, Melbourne, VIC, Australia, December 8-12, 2025, Proceedings, Part I. Volume 16245 of Lecture Notes in Computer Science, pages 3-34, Springer, 2025. [doi]

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